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71469320 = 23513167823
BaseRepresentation
bin1000100001010…
…00100100001000
311222111000110212
410100220210020
5121244004240
611031500252
71525323236
oct420504410
9158430425
1071469320
1137384a5a
121bb27688
1311a64550
1496c5956
15641b165
hex4428908

71469320 has 64 divisors (see below), whose sum is σ = 174424320. Its totient is φ = 26198784.

The previous prime is 71469313. The next prime is 71469323. The reversal of 71469320 is 2396417.

It is not an unprimeable number, because it can be changed into a prime (71469323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86429 + ... + 87251.

It is an arithmetic number, because the mean of its divisors is an integer number (2725380).

Almost surely, 271469320 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71469320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87212160).

71469320 is an abundant number, since it is smaller than the sum of its proper divisors (102955000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71469320 is a wasteful number, since it uses less digits than its factorization.

71469320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1014 (or 1010 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 71469320 is about 8453.9529215628. The cubic root of 71469320 is about 414.9921515911.

The spelling of 71469320 in words is "seventy-one million, four hundred sixty-nine thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 104 130 167 260 334 520 668 823 835 1336 1646 1670 2171 3292 3340 4115 4342 6584 6680 8230 8684 10699 10855 16460 17368 21398 21710 32920 42796 43420 53495 85592 86840 106990 137441 213980 274882 427960 549764 687205 1099528 1374410 1786733 2748820 3573466 5497640 7146932 8933665 14293864 17867330 35734660 71469320